* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download 1V Transimpedance Amplifier for Medical Ultrasound Imaging
Survey
Document related concepts
Scattering parameters wikipedia , lookup
Alternating current wikipedia , lookup
Mains electricity wikipedia , lookup
Spectral density wikipedia , lookup
Sound reinforcement system wikipedia , lookup
Loudspeaker wikipedia , lookup
Electronic engineering wikipedia , lookup
Negative feedback wikipedia , lookup
Resistive opto-isolator wikipedia , lookup
Public address system wikipedia , lookup
Regenerative circuit wikipedia , lookup
Audio power wikipedia , lookup
Opto-isolator wikipedia , lookup
Transcript
1V Transimpedance Amplifier for Medical Ultrasound Imaging Chen Zhao In these days, traditional piezo electric transducers used in intra-vascular ultrasound iamging are being replaced by Capacitive Micro Machined Ultrasound Transducers (CMUTs) as CMUTs can easily be integrated with CMOS front end electronic circuits. My goal is to design a 1V transimpedance amplifier in CMOS technology as an analog front-end for Capacitive Micro machined Ultrasound Transducers (CMUTs) for medical ultrasound imaging. The proposed amplifier is designed to amplify the signals from 15MHz to 45MHz with a center frequency of 30MHz. The proposed amplifier will achieves a voltage gain of 15 dB, an output noise power spectral density of 0.05 (uV)/SQRT(Hz) at a center-frequency of 30 MHz. First, I will design a transimpedance amplifier in CMOS for CMUTs. Then the small signal electrical equivalent circuit of a single CMUT element will be designed and used with a center frequency of 30MHz. Next, simulation and measurement results of the proposed amplifier will be used to compare with previously published results for similar applicantions. [1] Cenkeramaddi, L.R.; Ytterdal, T. , 1V transimpedance amplifier in 90nm CMOS for medical ultrasound imaging, NORCHIP, 2009, pp.1–4.